Fixed arch PR

[step21]

Checklist

• [x] Used a fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

The pin to llvmlite 0.31.0 does not work for aarch64, due to it not being available. So I adjusted it to match an available version. Please advice if this is ok, or for example non-aarch64 should be bumped to 0.33.0 also.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.